Appealing or challenging an arbitral award in Hong Kong on questions of law or serious irregularity
In Hong Kong Special Administrative Region (SAR), parties generally have no right to appeal or challenge an arbitral award on a question of law or as a result of serious irregularity unless they expressly opted into the relevant provisions in schedule 2 of the Arbitration Ordinance (Cap 609) in their contract.
Source: pinsentmasons.com